8-12 July 2013
Presented by Ms. Melanie MCLAREN on 9 Jul 2013 from 11:10 to 11:30
Type: Oral Presentation
Track: Track C - Photonics
Quantum entanglement of Bessel-Gaussian (BG) modes in the orbital angular momentum (OAM) basis offers a number of advantages over the more commonly used Laguerre-Gaussian (LG) modes. Unlike the LG modes, the continuous scalable radial parameter of the BG modes, allows greater control over quantum state preparation, allows a greater number of OAM modes to be measured, thereby increasing the degree of entanglement of the measured quantum state. We demonstrate entanglement in terms of the BG modes and show that a greater number of OAM modes are measured than with the LG modes. Classically, another useful property enables the amplitude and phase of a BG beam to be reconstructed after encountering an obstruction. We demonstrate that the reconstruction property of BG modes can be observed in quantum entanglement by calculating the concurrence of the quantum state at different positions of the obstruction.
Andrew Forbes, email@example.com, National Laser Centre CSIR, University of Stellenbosch